Work-support for shoe-leveling machines



E. N. PREBLE. WORK SUPPORT FOR SHOE LEVELING MACHINES.

APPLICATION FILED FEB. 4, 1919.

Patented Aug. 9, 192 11.

series.

EDWIN PEBBLE, BEVERLY, I'YIASSACZ'IUSETTS, ASSIG-NOR T0 UNITED SHOEIJIACI-IENERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OFNEW" JERSEY.

WORK-SUPPORT FOR SHOE-LEVEIiING MACHINES.

Application filed February 4, 1919. Serial No. 274,979.

T 0 all whom itmag concern;

Be it known that l, EDWIN N. PREBLE, a citizen of the United States,residing at Beverly, in the county of Essex and State of Massachusetts,have invented certain new and useful Improvements in vVork-Supports forShoe-Leveling Machines; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains' to make and use thesame. a

The present i vention relates to work supports for shoe levelingmachines and, more particularly, to metal lasts or followers ,em ployedin connection with leveling machines of the rolling pressure type andadapted to be received within a shoe to support the latter during theleveling operation.

Machines of the type discloses in the patcut to Mayo No. 861,746, July30, 1907, are provided with a metal follower for supporting the shoe anda cooperating pressing form, together with mechanism for relativelyrocking the pressing form and follower to traverse the pressing formover the shoe sole. This type of machine is used principally forleveling the soles of McKay shoes. It is customary to provide a castironfollower having a slot cored out of the heel end to receive thecorrespondingly shaped end of a supporting post, a pin which passesthrough the follower and the end of the postservingto rigidly secure thefollower to the post. As the follower has to withstand eX- tremely heavypressure in this type of ma chine, it is necessary that the end of thepost it the slotted portion of the follower accurately, and for thisreason it is customary to grind the interior walls of the slotaccurately to predetermined dimensions.

According to the usual practice which formerly existed, the pressingform was clesigned to engage with and level only the forepart, and theshank of the shoe sole, but the present tendency is to level the entiresole including the heel seat. With the usual follower having a slot inthe heel and ex tending completely from top to bottom, this mode ofoperation mars the inside of the sole at the heel seat, and this isparticularly objectionable in those McKay shoes which are made inimitation of welt shoes and are provided with an inner sock lining ofsoft material, the edges of the slot in this case frequently cutting thesock lining sufficiently to render it unfit for use.

One object of the present invention, then,

is to provide an improved follower capable of successful embodiment inexisting ma chines of this type and constructed in such a manner thatthe heel seatof the shoe may be leveled without damage.

l vith this object in view, one feature of the invention comprises acast metal follower having a parallel sided slot formed in the heelend,-the walls of which are accurately finished to predetermineddimensions, and a metal plate supported upon a ledge formed in the faceof the follower to close the top of the slot and afford a smooth bearingfor the shoe bottom at the heel seat. 7

Still further features of the invention consist in certain novelfeatures of construction, combinations and arrangements of partshereinafter described and claimed the ad-' vantages of which will beobvious to those skilled in the art from the following descrip tion.

' In the accompanying drawings illustrating the preferred form of theinvention, Figure 1 represents a side elevation of the improved worksupport; Fig. 2 is an end elevation of the work support; Fig. 3 is a'top plan view of the follower before its application to the supportingpost; Fig. 4 is a side elevation of the follower with the heel endbroken away and shown in section; and Fig. 5 is a detail illustratingthe heel end of the follower before the plate is applied to close theslot.

As shown in the drawings, the follower indicated at 10 is shaped to fitapproximately within the interior of the shoe and is provided with aslot 11 at the heel end which receives the upper end 12 of the usualsupporting post id. The inner end of the slot is inclined as shown in 15and is adapted to bear upon a correspondingly inclined face 16 of thepost, the last being secured to the upper end of the post by a pin 17passing through the-sides of the last and the post as indicated in Figs.1 and 2. This construction is intended to afford a rigid connectionbetween the follower and the supporting post and to permit the followerto withstand the comparatively heavy leveling pressure without breaking.The follower is inva- Patented Aug. 9, 19211.

riably made of cast-iron with 'the slot/.11

' cored out during the casting operation, after which the slot isaccuratelyground to predetermined dimensions in order that it may fittheend of the post 14: without any slack.

When the slot extends completelythrough the follower from top to bottom,it is a comparatively simplematter to grind the in terior with a wheelwhich is the same width as the Width of the finished slot, but when itis desired to close the top of the slot a dificult' problem is presentedfor if the slot is initially cored out witha closedtop, it' ispractically impossible, from a manufac= turing standpoint, to performthe requisite finishing operation upon the interior.

According to the present invention, the" cast-iron follower is providedwith a slot cored in the heel end and extending from. top to bottomofthe follower. The walls of this slot are then ground in the usual mannerto predetermined dimensions to form par 'allel sided slotwhich shall fitthe upper end of the supporting post closely. lVhen this operation hasbeen completed, a recess 18 ismilled in the face of the follower surroundingthe upper edges of the slot to form a supporting ledge for ametal plate 20 which closes thej'top of the slot and affords a smoothbearing for the shoe at the heel seat. As will be evident from aninspection 'of the drawings, the upper surface of the the curva' plateis'shaped to'conform' with ture of the face of the follower. The plate Ithe plate and the follower,

Fig. 4.

Y may be manufactured economically, is capable of withstanding the heavyleveling pressures employed without breaking at the connectionbetweenthe follower and the;

post, and enablesall types of shoes to be 7 leveled at the heel seatwithout marringthe "innerportion of the shoe. It may be pointed outin-connection with the breaking of the work support under the heavypressure em- ,ployed, that unless the slot in the heel end of thefollower fits the upper end of the supporting post accurately andwithout any lost motion, the follower is certain to break down at theheel portion after a'ver'y short period of use;

that this construction and arrangement is not essential except as far asspecified in the a 1 V While it is preferred to employ'the specificconstruction and'arrangement of parts shown and described, itwillibefunderstood' claims, and may benchanged or modified withoutdeparting from the broader features of the invention. j I p What isclaimed is 1. it work support for shoe leveling ma;

chines comprisinga cast metal followerhaving a parallel sided slotformedin the heel end, a support ng post having a correspondingly shaped endreceived and fitting closely within the slot, a pin passing through thepost and sides of the follower, and a metal,

plate supported upon a ledge formed in the face of the follower to closethe topof the shoe bottom at the heel seat.

slot andaiford a smooth bearing for the 2. A work support for shoeleveling ma chines comprising a cast metal follower having a parallelsided slot in the heel end and a recess formed in the-face. of thefollower extending about the upper edges of the slot,

and a metal plate supported'upon the ledge formed by the recess; andhaving an upper surface flushfwith the facel'of the follower to afford asmooth healing for the shoe bot tom at the heel seat."

3. A work support for shoe leveling maQ chines comprising a cast metalfollowerhav ing a parallel sided slotformed in the heels end, asupporting post having a'correspond inglyshaped end received and fittingclosely within the slot, means for securing the follower upon the post,and a metal plate closing the top of theslot and having an upper surfaceflush with the surface: of the followerlto "afford a smooth bearing forthe shoe bottom atthe heel seat.

. V DWIN NIFPREBLE;

